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Smarter speed bump using non-Newtonian liquid

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Re: Smarter speed bump using non-Newtonian liquid

#131

Post by jinfiesto »

sebleon wrote: post #33
code_duck wrote: post #16

"BIV baden inteligente de velocidad This Intelligent Speed Bump (BIV) is based in Non-Newtonian fluids dynamics in which particles in natural movement as liquid align when receiving an impact, thus entering into a solid state. This fluid is also biodegradable and harmless for human beings.This fluid inside the BIV is the solution to vehicles at sensible speed that will find no obstacle when driving over it. The other…

Very cool!! Out of curiosity, why is it only available indoors?

I think it's only available indoors because it's secretly filled with mayonnaise (non-newtonian fluid.) But on a serious note, it's plausible that whatever they've filled the bump with degrades under temperature conditions outside of what you'd find indoors.

Re: Smarter speed bump using non-Newtonian liquid

#132

Post by baldfat »

celticninja wrote: post #123
taneq wrote: post #88

Earlier quoted context omitted.

The point was temperature dependence, not the specific made-up numbers.

The difference though would be minimal at the recommended speeds which is why it probably is not a factor. If they were designed to keep speeds at 40mph then it probably would be.

What's the freezing point? Below the freezing point would be far from minimal?

Re: Smarter speed bump using non-Newtonian liquid

#133

Post by _wp3r »

gruez wrote: post #69
sparrish wrote: post #62

Earlier quoted context omitted.

My guess is their nemesis, the snowplow.

how do normal speedbumps deal with snowplows?

Usually the thin small ones are removed in the season, and the asphalt ones have signs. This is the same reason the speed bands/rumble strips are concave not bumps.

City plows also have shock absorbers systems that let them ride the bump, but you do get ice pockets after the obstacle.

Re: Smarter speed bump using non-Newtonian liquid

#134

Post by blkhawk »

alex_duf wrote: post #125

I stopped watching the video when they put a sexy lady dipping a finger in the liquid. Seriously it's 2017, you're trying to sell technology and you still objectify women.

So you are one of these "current year" people?

Also I want to point out that your assumption of gender from pure appearance is abhorrent.

Re: Smarter speed bump using non-Newtonian liquid

#136

Post by takk309 »

This just looks like a solution for a problem that does not exist. Speed bump geometry can satisfy the need for a smooth ride at slow speeds. There are three general types of traffic calming devices that would get slotted into the "speed bump" category: 1) traditional speed bumps, 2) speed humps, and 3) speed tables. I won't bother explaining a traditional speed bump as many of us are already familiar with them. A speed hump is generally longer, in the direction of travel, than a speed bump but not so long that a normal passenger vehicle will have both axles on the hump at the same time. A speed table is long enough, again in the direction of travel, that both axles of a passenger vehicle will be on top of the table. With both humps and tables the transition can be designed for a given effect. A sudden transition will be more severe to motorists, while a long, gradual transition can make the hump or table comfortable for the motorist. With all of these traffic calming options emergency vehicles are a concern. However, traffic calming measures like these should not be placed on roadways that will be frequently traveled by emergency vehicles. These traffic calming measures should be placed on low-volume, low-speed local roads.

Re: Smarter speed bump using non-Newtonian liquid

#137

Post by lightbyte »

hirsin wrote: post #8

A student startup built something similar for potholes, which i think is a better use of the tech (1). Essentially road repair crews could carry a couple bags of the fluid and drop the bag into a pothole, where it would confirm to the shape of the hole while stiffening on impact from the tires. Unsurprisingly this was invented in Cleveland. 1. http://www.popsci.com/technology/article/2012-04/bouncy-thic...

Unfortunately this didn't really amount to anything and Cleveland is still plagued by endless potholes.

Re: Smarter speed bump using non-Newtonian liquid

#138

Post by lightbyte »

ChuckMcM wrote: post #60
Torkel wrote: post #43

Speaking to a founder to a competing company ( https://www.edeva.se/en/ ) I found out that there has been many attempts at solving the problems of speed bumps: - Everybody gets bumped, not only high speed vehicles - Emergency vehicles need to slow down - Bus drivers and others can get back problems from speed bumps Most solutions break down because the forces and the wear and tear is so tremendous. The solution from…

I've always wondered what it would look like to tie one of those roadside speed monitoring trailers (they have a sign telling you the speed limit, and your speed) which were in contact with a 'speed bump' filled with hydraulic fluid. The faster you go over the limit, the harder and taller the speed bump :-) If you did this with a camera system you could avoid penalizing emergency vehicles.

That sounds like a great way to kill someone.

Re: Smarter speed bump using non-Newtonian liquid

#139

Post by celticninja »

baldfat wrote: post #132
celticninja wrote: post #123

Earlier quoted context omitted.

The difference though would be minimal at the recommended speeds which is why it probably is not a factor. If they were designed to keep speeds at 40mph then it probably would be.

What's the freezing point? Below the freezing point would be far from minimal?

Driving over it at 5 mph when it was frozen solid would probably be minimal.

Re: Smarter speed bump using non-Newtonian liquid

#140

Post by dahart »

I look forward to the problem of speed bumps disappearing when self driving cars take over. In the mean time, I know everyone hates it, but automated camera based speeding ticket systems would be cheaper and more effective than non-Newtonian speed bumps. We're also at a point in technology where cars could easily know the local speed limit and enforce it themselves.
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